Iran Tractor ITM 470, Operators Instruction Book

Page: 95 / 122

4
Maintenance and adjustment
88
Table 3:
5. Oil the threads of the studs before fit-
ting the nuts.
6. On refitment, tighten the nuts progres-
sively to a torque of:
•
Disc to Axle Hub - 270 Nm (200 lbf ft)
•
Rim to Disc - 240 Nm (177 lbf ft)
Steps of adjustment Track Setting
A 1227 mm
B 1328 mm
C 1430 mm
D 1530 mm
E 1630 mm
F 1730 mm
G 1830 mm
H 1930 mm
IMPORTANT
Recheck the wheel nut and rim bolt
torques after ten hours (or two hours if
on loader work) and then recheck, and if
necessary, retighten twice more at ten-
hour intervals. This protects against the
loosening that occurs from assemblies
settling.
TYRES
Check tyre pressures every 100
hours or every two weeks whichever is
the sooner.
WARNING
Tyre tread and ply rating or load in-
dex must match across the axle. DO NOT
fit a radial one side and a crossply on
the other. Check that the tyre pressures
are correct for the particular operation
to be performed. These simple rules, if
followed carefully, will ensure maximum
tyre life.
Fig. 52: